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English: Epigenetic mechanisms are affected by several factors and processes including development in utero and in childhood, environmental chemicals, drugs and pharmaceuticals, aging, and diet. DNA methylation is what occurs when methyl groups, an epigenetic factor found in some dietary sources, can tag DNA and activate or repress genes. Histones are proteins around which DNA can wind for compaction and gene regulation. Histone modification occurs when the binding of epigenetic factors to histone “tails” alters the extent to which DNA is wrapped around histones and the availability of genes in the DNA to be activated. All of these factors and processes can have an effect on people’s health and influence their health possibly resulting in cancer, autoimmune disease, mental disorders, or diabetes among other illnesses. National Institutes of Health
Author National Institutes of Health


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current14:15, 29 May 2018Thumbnail for version as of 14:15, 29 May 20181,701 × 1,020 (272 KB)Chiswick Chapcrop deadspace, contrast at the higher resolution
12:44, 29 May 2018Thumbnail for version as of 12:44, 29 May 20182,000 × 1,118 (351 KB)בנימיןHigher quality
07:26, 8 October 2017Thumbnail for version as of 07:26, 8 October 2017647 × 436 (52 KB)Chiswick Chapcrop deadspace, contrast
15:50, 11 December 2012Thumbnail for version as of 15:50, 11 December 2012700 × 485 (137 KB)Capmolarger image
21:53, 20 March 2010Thumbnail for version as of 21:53, 20 March 2010600 × 417 (69 KB)7mike5000{{Information |Description={{en|1=Illustration of epigenesis}} |Source= |Author=National Institute of Health |Date=2005 |Permission= |other_versions= }} Category:Genetics [[Category

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